Twyn-y-Briddallt Roman Camp
The Romans were here in Aberdare in the 1st century AD and they slept over night after building a marching camp at this site south of Cwmaman (ST 0015 9820). The defences were built to take advantage of the geography on top of this mountain ridge. The enclosing bank and ditch measures 5.5m wide and 0.9m high (this is the best preserved), and the whole area 402m NW – SE and 183m wide. The camp was probably only used once and it was made to defend the Romans overnight. A palisade of wooden stakes (pila muralia) would have helped defend the bank and ditch, two were carried by each soldier.
Ref. Royal Commission on Ancient and Historical Monuments in Wales : Glamorgan Vol.1 Part 2, The Iron Age and the Roman Occupation. 1976. Page 99 – 100.
CADW Scheduled Ancient Monument Record : GM259(RCT) Twyn y Briddallt Roman Camp. (Report).